I would be VERY surprised if you were able to sandblast the chrome off, unless it's severely deteriorated and flaky already. When I think of chrome stripping, I picture vats of bubbly, toxic liquid like in the end of that Terminator movie.
Painting over chrome can be a challenge, and is not generally recommended. This holds especially true for the DIY painter. It's difficult to get a good scratch goin on the chrome surface in order to give the paint something to stick to. Also, most "over the counter" products sold in an aerosol just don't cut the mustard. I am not familiar with powdercoating, so I am not sure about applying that over the chrome.